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CHAPTER 76
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ENGINE CONTROLS
TABLE OF CONTENTS
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SUBJECT_______ CH/SE/SU _ PAGE EFFECTIVITY________ C ____ ___________ Control Unit (8KS1, 8KS2) LEVER ASSEMBLY - THROTTLE CONTROL 76-11-41 REMOVAL/INSTALLATION 401 ALL Removal of the Throttle Control 401 ALL Lever Assembly Installation of the Throttle 413 ALL Control Lever Assembly
ENGINE MASTER CONTROL 76-12-00 DESCRIPTION AND OPERATION 1 ALL HP Fuel Shut OFF Valve Control 1 ALL General 1 ALL Valve Operation 1 ALL LP Fuel Shut Off Valve Control 4 ALL General 4 ALL Valve Operation 4 ALL
76-CONTENTS Page 2 Nov 01/01 R CES
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ENGINE CONTROLS - GENERAL - DESCRIPTION AND OPERATION
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1. General
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The engine control system consist of :
- the throttle control
- the HP fuel shutoff valve control
- the LP fuel control.
A. Throttle Control Lever (Ref. Fig. 001) The throttle control system is fully electrical. The throttle control lever drives the position detectors. The position detectors are located under the cockpit center pedestal. Two of the resolvers are dedicated to the FADEC system. Each channel of the Electronic Control Unit receives the position signal from one resolver in the analog form.
B. ENG/MASTER Control Switch (Ref. Fig. 002) The MASTER control switch interfaces with the HP fuel shutoff valve and the Engine Interface Unit (EIU). It controls directly the closure of the fuel shutoff valve : it energizes the valve solenoid. An analog signal informs the EIU of the position of the MASTER control switch. The EIU transmits then the information to the ECU in digital form. The ECU uses this information to initiate the automatic and manual engine starting sequences. The MASTER control switches are part of the panel 115VU, switch
R replacement requires removal of panel 115VU.
C. LP Fuel Shutoff Valve Control
The LP fuel shutoff valve is electrically controlled :
- either by the ENG/MASTER control switch on the ENG panel - or by the ENG FIRE pushbutton switch.
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Throttle Control System
Figure 001
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Acquisition of the Discrete Signal by the FADEC
Figure 002
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2. Component Location__________________ (Ref. Fig. 003)
-------------------------------------------------------------------------------FIN I FUNCTIONAL DESIGNATION I PANELIZONEIACCESS I ATA I I I I DOOR I REF.
-------------------------------------------------------------------------------2KC CTL SW-ENG/MASTER 2 115VU 210 76-12-00 3KC CTL SW-ENG/MASTER 1 115VU 210 76-12-00
4000KC SOLENOID-HP FUEL SOV 437 437AL 80-11-20 447 447AL 8KS1 CTL UNIT-THROTTLE, ENG1 11VU 210 76-11-17 8KS2 CTL UNIT-THROTTLE, ENG2 11VU 210 76-11-17
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Control and Indicating- Component Location
Figure 003
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POWER CONTROL - DESCRIPTION AND OPERATION
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1. General
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(Ref. Fig. 001)
A. Manual Thrust Setting Mode (the autothrust function is not active) The throttle control lever in the cockpit center pedestal controls :
- the engine level of thrust
- the thrust limit mode.
The Electronic Control Unit (ECU):
- receives the throttle lever angle
- computes the engine thrust limit parameter and adjusts the actual engine thrust parameter accordingly.
B. Automatic Thrust Setting Mode (the autothrust function is active)
The throttle control lever controls :
- the actual thrust limit 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM ENGINE CONTROLS 发动机控制(2)
